Vehicle deceleration control method and device

Abstract

The embodiment of the present application relates to the technical field of vehicle control, and discloses a kind of vehicle deceleration control methods, comprising: receiving brake pedal stroke based on brake pedal detection, and determining the current driver's brake intention information based on the brake pedal stroke;Determine deceleration control signal based on the brake intention information;According to the deceleration control signal, target vehicle is controlled to carry out deceleration control.The vehicle deceleration control method in the embodiment of the present application determines the current brake intention of driver by detecting brake pedal stroke, and then matches the corresponding acceleration control signal;And when carrying out specific implementation, temperature signal and double brake structure can be combined to carry out comprehensive brake braking, improve brake efficiency and ensure driving safety.

Description

Technical Field

[0001] This invention relates to the field of vehicle control technology, and specifically to a vehicle deceleration control method and device. Background Technology

[0002] Currently, vehicles may encounter various situations requiring braking during operation, which is achieved by pressing the brake pedal. However, existing braking methods are susceptible to adverse effects from external environmental factors or the actual conditions during braking. Typically, these methods rely on hydraulic transmission systems or motors to control friction plates, causing friction between the plates and brake discs to decelerate the wheels. During prolonged driving, the brake discs reach high temperatures, and this friction can easily lead to deformation at the contact point between the disc and the friction plates, thus affecting deceleration efficiency and presenting certain drawbacks. Therefore, designing a more efficient braking and deceleration solution has become a pressing technical problem for those skilled in the art. Summary of the Invention

[0003] To address the aforementioned deficiencies, this invention discloses a vehicle deceleration control method that enables efficient vehicle deceleration and ensures vehicle driving safety.

[0004] The first aspect of this invention discloses a vehicle deceleration control method, comprising: Receive brake pedal travel detected based on the brake pedal, and determine the current driver's braking intention information based on the brake pedal travel; The deceleration control signal is determined based on the braking intention information; The target vehicle is controlled to decelerate according to the deceleration control signal.

[0005] As an optional implementation, in a first aspect of the present invention, controlling the target vehicle to decelerate according to the deceleration control signal includes: The deceleration control signal is matched with a pre-configured deceleration strategy to obtain a corresponding pressure control request. Based on the pressure control request, braking control is performed at a first preset pressure value, and the next step is executed after the set conditions are met. If the pressure control value in the pressure control request is less than the second preset pressure value, then the front wheel assembly and the rear wheel assembly are braked simultaneously based on the pressure control value; the first preset pressure value is greater than the second preset pressure value. If the pressure control value in the pressure control request is between the first preset pressure value and the second preset pressure value, then the rear wheel assembly braking is controlled based on the pressure control value. As an optional implementation, in a first aspect of the present invention, after performing braking control at a first preset pressure value based on the pressure control request, and proceeding to the next step after a set condition is met, the method further includes: If the pressure control value in the pressure control request is greater than the first preset pressure value, then the vehicle braking is performed at the first preset pressure value, and the deceleration pressure release rate is limited during the braking process.

[0006] As an optional implementation, in a first aspect of the present invention, the pressure control request includes a gradient pressure control curve; The method of controlling the simultaneous braking of the front and rear wheel sets based on the pressure control value includes: The front wheel assembly is braked based on the first gradient curve in the gradient pressure control curve, and the rear wheel assembly is braked based on the second gradient curve in the gradient pressure control curve. The method of controlling the rear wheel assembly braking based on the pressure control value includes: The rear wheel assembly braking is controlled based on the gradient pressure control curve.

[0007] As an optional implementation, in a first aspect of the present invention, the braking device of the target vehicle includes a first braking structure and a second braking structure, both of which are used to brake the same wheel. The step of controlling the target vehicle to decelerate according to the deceleration control signal includes: The first braking structure and the second braking structure are switched based on the gradient pressure control curve to brake the rear wheel assembly.

[0008] As an optional implementation, in a first aspect of the present invention, after controlling the target vehicle to perform deceleration control according to the deceleration control signal, the method further includes: Obtain the temperature information of the brake structure during the braking and deceleration process of the target vehicle; During vehicle braking, the braking thermal energy value is determined based on the target vehicle's current braking intention information, vehicle speed information, and the thermal efficiency value of the braking structure. The cooling heat energy value is determined based on the current ambient temperature, the temperature information of the brake structure at the previous moment, and the corresponding cooling conduction coefficient. The actual temperature at the brake structure of the target vehicle at the current moment is determined based on the ambient temperature, braking thermal energy value, and cooling thermal energy value. The corresponding gradient control curve is determined based on the actual temperature to perform braking and deceleration control.

[0009] As an optional implementation, in the first aspect of the present invention, the brake structure at the wheel is provided with a first brake structure and a second brake structure, and there is a certain heat dissipation gap between the first brake structure and the second brake structure. Determining the actual temperature at the brake structure of the target vehicle at the current moment based on the ambient temperature, braking thermal energy value, and cooling thermal energy value includes: When the actual temperature exceeds the set temperature value, a control signal is output to control the first braking structure or the second braking structure to switch braking.

[0010] A second aspect of this invention discloses a vehicle deceleration control method, comprising: Receiving module: used to receive the brake pedal travel detected based on the brake pedal, and to determine the current driver's braking intention information based on the brake pedal travel; Determining module: used to determine the deceleration control signal based on the braking intention information; Control module: Used to control the target vehicle to perform deceleration control based on the deceleration control signal.

[0011] A third aspect of the present invention discloses an electronic device, comprising: a memory storing executable program code; a processor coupled to the memory; the processor calling the executable program code stored in the memory to execute the vehicle deceleration control method disclosed in the first aspect of the present invention.

[0012] A fourth aspect of the present invention discloses a computer-readable storage medium storing a computer program, wherein the computer program causes a computer to execute the vehicle deceleration control method disclosed in the first aspect of the present invention.

[0013] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: The vehicle deceleration control method in this embodiment of the invention determines the driver's current braking intention by detecting the brake pedal travel, and then matches the corresponding acceleration control signal; and in specific implementation, it can combine temperature signal and dual brake structure to perform comprehensive braking, improve braking efficiency and ensure driving safety. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1This is a schematic flowchart of the vehicle deceleration control method disclosed in an embodiment of the present invention; Figure 2 This is a schematic diagram of the process for vehicle braking control disclosed in an embodiment of the present invention; Figure 3 This is a schematic diagram of the gradient control update based on temperature information disclosed in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a vehicle deceleration control device provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] It should be noted that the terms "first," "second," "third," "fourth," etc., in the specification and claims of this invention are used to distinguish different objects, not to describe a specific order. The terms "comprising" and "having," and any variations thereof, in the embodiments of this invention are intended to cover non-exclusive inclusion. Exemplarily, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0018] Vehicles may encounter various situations requiring braking during operation, which is achieved by pressing the brake pedal. However, existing braking methods, due to external environmental factors or the actual conditions during braking, can significantly negatively impact braking effectiveness. Typically, these methods rely on hydraulic transmission systems or motors to control friction plates, causing friction between the brake disc and brake pads to decelerate the wheels. During prolonged driving, the brake disc reaches high temperatures, easily leading to deformation at the contact point between the disc and the friction plate, thus affecting deceleration efficiency and presenting certain drawbacks. Therefore, this invention discloses a vehicle deceleration control method, device, electronic equipment, and storage medium. It determines the driver's current braking intention by detecting the brake pedal travel and then matches a corresponding acceleration control signal. Furthermore, in practical implementation, it can combine temperature signals with a dual-brake structure for comprehensive braking, improving braking efficiency and ensuring driving safety.

[0019] Example 1 Please see Figure 1 , Figure 1 This is a flowchart illustrating the vehicle deceleration control method disclosed in an embodiment of the present invention. The execution entity of the method described in this embodiment is an execution entity composed of software and / or hardware. This execution entity can receive relevant information via wired or / or wireless means and can send certain instructions. It may also have certain processing and storage functions. This execution entity can control multiple devices, such as remote physical servers or cloud servers and related software, or local hosts or servers and related software that perform related operations on devices located in a certain location. In some scenarios, multiple storage devices can also be controlled; these storage devices may be placed in the same location as the device or in different locations. Figure 1 As shown, the vehicle deceleration control method includes the following steps: S101: Receive brake pedal travel detected based on the brake pedal, and determine the current driver's braking intention information based on the brake pedal travel; S102: Determine the deceleration control signal based on the braking intention information; S103: Control the target vehicle to perform deceleration control according to the deceleration control signal.

[0020] This step is mainly to detect the state of the brake pedal when the driver applies the brakes, determine the braking intention based on the state of the brake pedal, and finally perform deceleration control based on the braking intention.

[0021] More preferably, Figure 2 This is a schematic diagram of the vehicle braking control process disclosed in an embodiment of the present invention, as shown below. Figure 2 As shown, controlling the deceleration of the target vehicle according to the deceleration control signal includes: 1031: Match the deceleration control signal with a pre-configured deceleration strategy to obtain a corresponding pressure control request; 1032: Based on the pressure control request, brake control is performed at a first preset pressure value, and the next step is executed after the set conditions are met; 1033: If the pressure control value in the pressure control request is less than the second preset pressure value, then the front wheel assembly and the rear wheel assembly are controlled to brake simultaneously based on the pressure control value; the first preset pressure value is greater than the second preset pressure value; 1034: If the pressure control value in the pressure control request is between the first preset pressure value and the second preset pressure value, then the rear wheel assembly is braked based on the pressure control value. Specifically, when pressure control is activated, it is initiated with a pressure value of 3 bar; and time is used as a setting condition during the setting process. After the setting is reached, the next step can be executed; when the pressure control request is less than 0.75 bar, and the request is made to reduce the pressure of all four wheels for braking at the end; when the pressure control request is less than 3 bar, and the request is made to reduce the pressure of only the rear wheels for braking at the end.

[0022] In practice, if the pressure increases to above 0.75 bar within the same gradient cycle, gradient control will no longer be established until a request for 3 bar is received.

[0023] More preferably, after the step of performing braking control at a first preset pressure value based on the pressure control request, and then proceeding to the next step after the set condition is met, the method further includes: If the pressure control value in the pressure control request is greater than the first preset pressure value, then the vehicle braking is performed at the first preset pressure value, and the deceleration pressure release rate is limited during the braking process.

[0024] More preferably, the pressure control request includes a gradient pressure control curve; The method of controlling the simultaneous braking of the front and rear wheel sets based on the pressure control value includes: The front wheel assembly is braked based on the first gradient curve in the gradient pressure control curve, and the rear wheel assembly is braked based on the second gradient curve in the gradient pressure control curve. The method of controlling the rear wheel assembly braking based on the pressure control value includes: The rear wheel assembly braking is controlled based on the gradient pressure control curve.

[0025] In practice, because different wheels have different characteristics, different gradient pressure control curves need to be set for front and rear wheel braking to improve overall braking efficiency. During implementation, there may also be situations where the vehicle is turning or rotating, so different pressure gradients can be set for the left and right wheels for management.

[0026] More preferably, the braking device of the target vehicle includes a first braking structure and a second braking structure, both of which are used to brake the same wheel. The step of controlling the target vehicle to decelerate according to the deceleration control signal includes: The first braking structure and the second braking structure are switched based on the gradient pressure control curve to brake the rear wheel assembly.

[0027] Existing methods generally use a single brake disc for control. However, prolonged braking can cause the temperature between the brake disc and the wheel to rise, affecting braking performance. Therefore, a dual brake disc structure can be used in practice. The brake discs alternately apply pressure to ensure the stability of braking capacity. This design of the gradient pressure curve is more in line with the actual control method.

[0028] More preferably, Figure 3 This is a schematic diagram of the gradient control update process based on temperature information disclosed in an embodiment of the present invention, as shown below. Figure 3 As shown, after controlling the target vehicle to decelerate according to the deceleration control signal, the method further includes: S104: Obtain the temperature information of the brake structure during the braking and deceleration process of the target vehicle; S105: During vehicle braking, the braking thermal energy value is determined based on the target vehicle's current braking intention information, vehicle speed information, and the thermal efficiency value of the braking structure. S106: Determine the cooling heat energy value based on the current ambient temperature, the temperature information of the brake structure at the previous moment, and the corresponding cooling conduction coefficient; S107: Determine the actual temperature of the brake structure of the target vehicle at the current moment based on the ambient temperature, braking thermal energy value, and cooling thermal energy value; S108: Determine the corresponding gradient control curve based on the actual temperature to perform braking and deceleration control.

[0029] In addition to employing a dual-brake structure to maintain braking stability, the gradient control curve can be set based on the actual temperature during implementation. The decrease in braking capacity due to temperature rise is compensated for by temperature adjustment. Furthermore, it can predict the temperature of the next moment based on the current temperature, the previous braking temperature, and the cooling conductivity coefficient. This allows for advance updating of the gradient control curve, rather than waiting until a temperature change is detected. This significantly improves the overall deceleration control smoothness and enhances deceleration and braking efficiency.

[0030] More preferably, the brake structure at the wheel is provided with a first brake structure and a second brake structure, and there is a certain heat dissipation gap between the first brake structure and the second brake structure. Determining the actual temperature at the brake structure of the target vehicle at the current moment based on the ambient temperature, braking thermal energy value, and cooling thermal energy value includes: When the actual temperature exceeds the set temperature value, a control signal is output to control the first braking structure or the second braking structure to switch braking.

[0031] By employing actual temperature detection in conjunction with a dual-brake structure for brake switching control, a stable braking effect is achieved.

[0032] The vehicle deceleration control method in this embodiment of the invention determines the driver's current braking intention by detecting the brake pedal travel, and then matches the corresponding acceleration control signal; and in specific implementation, it can combine temperature signal and dual brake structure to perform comprehensive braking, improve braking efficiency and ensure driving safety.

[0033] Example 2 Please see Figure 4 , Figure 4 This is a schematic diagram of the vehicle deceleration control device disclosed in an embodiment of the present invention. Figure 4 As shown, the vehicle deceleration control device may include: Receiving module 21: used to receive brake pedal travel detected based on the brake pedal, and determine the current driver's braking intention information based on the brake pedal travel; Determining module 22: used to determine the deceleration control signal based on the braking intention information; Control module 23: Used to control the target vehicle to perform deceleration control according to the deceleration control signal.

[0034] More preferably, controlling the target vehicle to decelerate according to the deceleration control signal includes: Pressure determination module: used to match the deceleration control signal with a pre-configured deceleration strategy to obtain a corresponding pressure control request; Braking control module: used to perform braking control at a first preset pressure value based on the pressure control request, and to execute the next step after the set conditions are met; First judgment module: used to control the front wheel group and the rear wheel group to brake simultaneously based on the pressure control value if the pressure control value in the pressure control request is less than the second preset pressure value; the first preset pressure value is greater than the second preset pressure value; The second judgment module is used to control the rear wheel assembly braking based on the pressure control value if the pressure control value in the pressure control request is between the first preset pressure value and the second preset pressure value. More preferably, after the step of performing braking control at a first preset pressure value based on the pressure control request, and then proceeding to the next step after the set condition is met, the method further includes: Pressure release control module: If the pressure control value in the pressure control request is greater than the first preset pressure value, then apply the first preset pressure value for vehicle braking, and limit the deceleration pressure release rate during braking.

[0035] More preferably, the pressure control request includes a gradient pressure control curve; The method of controlling the simultaneous braking of the front and rear wheel sets based on the pressure control value includes: The front wheel assembly is braked based on the first gradient curve in the gradient pressure control curve, and the rear wheel assembly is braked based on the second gradient curve in the gradient pressure control curve. The method of controlling the rear wheel assembly braking based on the pressure control value includes: The rear wheel assembly braking is controlled based on the gradient pressure control curve.

[0036] More preferably, the braking device of the target vehicle includes a first braking structure and a second braking structure, both of which are used to brake the same wheel. The step of controlling the target vehicle to decelerate according to the deceleration control signal includes: The first braking structure and the second braking structure are switched based on the gradient pressure control curve to brake the rear wheel assembly.

[0037] More preferably, after controlling the target vehicle to decelerate according to the deceleration control signal, the method further includes: Temperature acquisition module: used to acquire temperature information of the brake structure during the braking and deceleration process of the target vehicle; Thermal energy acquisition module: used to determine the braking thermal energy value during vehicle braking based on the target vehicle's current braking intention information, vehicle speed information, and the thermal efficiency value of the brake structure; Cooling value determination module: used to determine the cooling heat energy value based on the current ambient temperature, the temperature information of the brake structure at the previous moment, and the corresponding cooling conductivity coefficient; Actual temperature determination module: used to determine the actual temperature of the brake structure of the target vehicle at the current moment based on the ambient temperature, braking thermal energy value, and cooling thermal energy value; Deceleration control module: used to determine the corresponding gradient control curve based on the actual temperature to perform braking deceleration control.

[0038] More preferably, the brake structure at the wheel is provided with a first brake structure and a second brake structure, and there is a certain heat dissipation gap between the first brake structure and the second brake structure. Determining the actual temperature at the brake structure of the target vehicle at the current moment based on the ambient temperature, braking thermal energy value, and cooling thermal energy value includes: When the actual temperature exceeds the set temperature value, a control signal is output to control the first braking structure or the second braking structure to switch braking.

[0039] The vehicle deceleration control method in this embodiment of the invention determines the driver's current braking intention by detecting the brake pedal travel, and then matches the corresponding acceleration control signal; and in specific implementation, it can combine temperature signal and dual brake structure to perform comprehensive braking, improve braking efficiency and ensure driving safety.

[0040] Example 3 Please see Figure 5 , Figure 5 This is a schematic diagram of the structure of an electronic device disclosed in an embodiment of the present invention. The electronic device can be a computer, a server, etc. Of course, in certain cases, it can also be a mobile phone, tablet computer, monitoring terminal, or other smart device, as well as an image acquisition device with processing capabilities. Figure 5 As shown, the electronic device may include: Memory 510 storing executable program code; Processor 520 coupled to memory 510; The processor 520 calls the executable program code stored in the memory 510 to execute some or all of the steps in the vehicle deceleration control method in Embodiment 1.

[0041] This invention discloses a computer-readable storage medium storing a computer program that causes a computer to perform some or all of the steps in the vehicle deceleration control method of Embodiment 1.

[0042] This invention also discloses a computer program product, wherein when the computer program product is run on a computer, the computer performs some or all of the steps in the vehicle deceleration control method of Embodiment 1.

[0043] This invention also discloses an application publishing platform, which is used to publish computer program products. When the computer program products are run on a computer, the computer executes some or all of the steps in the vehicle deceleration control method in Embodiment 1.

[0044] In various embodiments of the present invention, it should be understood that the sequence number of each process does not necessarily imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0045] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; they can be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0046] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0047] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-accessible memory. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several requests to cause a computer device (which can be a personal computer, server, or network device, specifically a processor in the computer device) to execute some or all of the steps of the methods described in the various embodiments of the present invention.

[0048] In the embodiments provided by this invention, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B solely based on A; B can also be determined based on A and / or other information.

[0049] Those skilled in the art will understand that some or all of the steps in the various methods of the embodiments described can be implemented by a program instructing related hardware. This program can be stored in a computer-readable storage medium, including read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), one-time programmable read-only memory (OTPROM), electrically-Erasable Programmable Read-Only Memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, disk storage, magnetic tape storage, or any other computer-readable medium capable of carrying or storing data.

[0050] The vehicle deceleration control method, device, electronic device, and storage medium disclosed in the embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A vehicle deceleration control method, characterized in that, include: Receive brake pedal travel detected based on the brake pedal, and determine the current driver's braking intention information based on the brake pedal travel; The deceleration control signal is determined based on the braking intention information; The target vehicle is controlled to decelerate according to the deceleration control signal. The step of controlling the target vehicle to decelerate according to the deceleration control signal includes: The deceleration control signal is matched with a pre-configured deceleration strategy to obtain a corresponding pressure control request; the pressure control request includes a gradient pressure control curve. Based on the pressure control request, braking control is performed at a first preset pressure value, and the next step is executed after the set conditions are met. If the pressure control value in the pressure control request is less than the second preset pressure value, then the front wheel assembly and the rear wheel assembly are braked simultaneously based on the pressure control value; the first preset pressure value is greater than the second preset pressure value. If the pressure control value in the pressure control request is between the first preset pressure value and the second preset pressure value, then the rear wheel assembly is braked based on the pressure control value. The temperature information of the brake structure during the braking and deceleration process of the target vehicle is obtained; the brake structure at the wheel is provided with a first brake structure and a second brake structure, and there is a certain heat dissipation gap between the first brake structure and the second brake structure; During vehicle braking, the braking thermal energy value is determined based on the target vehicle's current braking intention information, vehicle speed information, and the thermal efficiency value of the braking structure. The cooling heat energy value is determined based on the current ambient temperature, the temperature information of the brake structure at the previous moment, and the corresponding cooling conduction coefficient. The actual temperature at the brake structure of the target vehicle at the current moment is determined based on the ambient temperature, braking thermal energy value, and cooling thermal energy value; when the actual temperature exceeds the set temperature value, a control signal is output to control the first brake structure or the second brake structure to switch braking. The corresponding gradient control curve is determined based on the actual temperature to perform braking and deceleration control.

2. The vehicle deceleration control method as described in claim 1, characterized in that, After the step of performing braking control based on the pressure control request at a first preset pressure value, and then proceeding to the next step after the set conditions are met, the method further includes: If the pressure control value in the pressure control request is greater than the first preset pressure value, then the vehicle braking is performed at the first preset pressure value, and the deceleration pressure release rate is limited during the braking process.

3. The vehicle deceleration control method as described in claim 2, characterized in that, The method of controlling the simultaneous braking of the front and rear wheel sets based on the pressure control value includes: The front wheel assembly is braked based on the first gradient curve in the gradient pressure control curve, and the rear wheel assembly is braked based on the second gradient curve in the gradient pressure control curve. The method of controlling the rear wheel assembly braking based on the pressure control value includes: The rear wheel assembly braking is controlled based on the gradient pressure control curve.

4. The vehicle deceleration control method as described in claim 3, characterized in that, The braking device of the target vehicle includes a first braking structure and a second braking structure, both of which are used to brake the same wheel. The step of controlling the target vehicle to decelerate according to the deceleration control signal includes: The first braking structure and the second braking structure are switched based on the gradient pressure control curve to brake the rear wheel assembly.

5. A vehicle deceleration control device, characterized in that, include: Receiving module: used to receive the brake pedal travel detected based on the brake pedal, and to determine the current driver's braking intention information based on the brake pedal travel; Determining module: used to determine the deceleration control signal based on the braking intention information; Control module: used to control the target vehicle to perform deceleration control according to the deceleration control signal; The step of controlling the target vehicle to decelerate according to the deceleration control signal includes: Pressure determination module: used to match the deceleration control signal with a pre-configured deceleration strategy to obtain a corresponding pressure control request; the pressure control request includes a gradient pressure control curve; Braking control module: used to perform braking control at a first preset pressure value based on the pressure control request, and to execute the next step after the set conditions are met; First judgment module: used to control the front wheel group and the rear wheel group to brake simultaneously based on the pressure control value if the pressure control value in the pressure control request is less than the second preset pressure value; the first preset pressure value is greater than the second preset pressure value; The second judgment module is used to control the rear wheel assembly braking based on the pressure control value if the pressure control value in the pressure control request is between the first preset pressure value and the second preset pressure value. Temperature acquisition module: acquires temperature information of the brake structure during the braking and deceleration process of the target vehicle; the brake structure at the wheel is provided with a first brake structure and a second brake structure, and there is a certain heat dissipation gap between the first brake structure and the second brake structure; Thermal energy acquisition module: used to determine the braking thermal energy value during vehicle braking based on the target vehicle's current braking intention information, vehicle speed information, and the thermal efficiency value of the brake structure; Cooling value determination module: used to determine the cooling heat energy value based on the current ambient temperature, the temperature information of the brake structure at the previous moment, and the corresponding cooling conductivity coefficient; Actual temperature determination module: used to determine the actual temperature of the brake structure of the target vehicle at the current moment based on the ambient temperature, braking thermal energy value, and cooling thermal energy value; when the actual temperature exceeds the set temperature value, a control signal is output to control the first brake structure or the second brake structure to switch braking. Deceleration control module: used to determine the corresponding gradient control curve based on the actual temperature to perform braking deceleration control.

6. An electronic device, characterized in that, include: Memory containing executable program code; A processor coupled to the memory; The processor calls the executable program code stored in the memory to execute the vehicle deceleration control method according to any one of claims 1 to 4.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, wherein the computer program causes a computer to perform the vehicle deceleration control method according to any one of claims 1 to 4.

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